Twelve years ago I bought an 11 inch clutch and a 10.5 inch pressure plate (from Hays) that was sized to accept the 11 inch clutch meaning I didn't have to change the flywheel or bellhousing. I didn't even have to align the disc due to the tight clearance. Is the 10.95 and 11 the same? I need to replace my disc because it became impregnated with oil from a leak but the pressure plate is still good with maybe 100 miles on it. I'm not sure what to get. I have the 18 spline.